NiOH-Au electrocatalytic material loaded on foamed nickel as well as preparation method and application of NiOH-Au electrocatalytic material
By loading NiOH-Au electrocatalytic material onto nickel foam, the problems of catalyst activity and stability in the oxidation reaction of 1,2-propanediol were solved, achieving a highly efficient electrocatalytic effect suitable for fuel cells and chemical synthesis.
Patent Information
- Application Number
- CN202510922314.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2025-11-18
AI Technical Summary
Existing technologies struggle to provide efficient and stable electrocatalysts to promote the oxidation of 1,2-propanediol, especially in fuel cells and chemical synthesis, where the catalysts suffer from insufficient activity, selectivity, and stability.
Using nickel foam as a carrier, NiOH-Au electrocatalytic materials were synthesized via hydrothermal method and electroplating technology. The preparation process is simple and easy to operate, and the material quality is stable.
The oxidation of 1,2-propanediol to lactic acid in KOH and 1,2-propanediol solution requires only a small voltage, with a voltage of only 1.02V required when the current density reaches 100 mA/cm2, and the material exhibits high stability.
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Figure CN120967388A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of electrocatalytic materials, and particularly relates to a NiOH-Au electrocatalytic material loaded on foamed nickel and a preparation method and application thereof. BACKGROUND
[0002] The electrocatalytic oxidation reaction of alcohol fuel has been widely concerned in the energy conversion path due to the advantages of wide raw material sources, high energy density, clean reaction products and the like, wherein 1,2-propanediol as an important organic alcohol compound has good thermal stability and low toxicity, and shows great application potential in the fields of fuel cells, biodiesel preparation and chemical synthesis.
[0003] In the field of electrocatalysis, the oxidation reaction of 1,2-propanediol is considered to be an ideal alternative fuel selection to methanol or ethanol because of the characteristics of high reaction activity in electrooxidation, flammability, low toxicity, high boiling point, and can be handled and stored quietly; however, the oxidation reaction mechanism of 1,2-propanediol is relatively complex, involving a multi-electron transfer process, and higher requirements are put forward for the activity, selectivity and stability of the catalyst. Therefore, developing an efficient and stable electrocatalyst to promote the oxidation reaction of 1,2-propanediol is of great significance for promoting the development of alcohol fuel cells, improving energy utilization efficiency and realizing green chemical production. SUMMARY
[0004] The purpose of the embodiment of the application is to provide a preparation method of a NiOH-Au electrocatalytic material loaded on foamed nickel, which aims to solve the problems proposed in the background.
[0005] The embodiment of the application is implemented in this way, and the preparation method of the NiOH-Au electrocatalytic material loaded on foamed nickel comprises the following steps:
[0006] The cut foamed nickel is treated with nitric acid, ethanol and deionized water in sequence;
[0007] The nickel sulfate hexahydrate is dissolved in deionized water, and the treated foamed nickel is added, heated for reaction, cooled to room temperature after the reaction is completed, and the product is collected, washed with ethanol and deionized water, and dried;
[0008] The dried product is electroplated in an electroplating solution, washed and dried after electroplating is completed, and the NiOH-Au electrocatalytic material loaded on foamed nickel is obtained.
[0009] Preferably, in the step of treating the cut foamed nickel with nitric acid, ethanol and deionized water in sequence, the concentration of the nitric acid is 1-1.2 mol / L, and the treatment is ultrasonic treatment.
[0010] Preferably, in the step of dissolving the nickel sulfate hexahydrate in deionized water, the concentration of the nickel sulfate hexahydrate is 0.5-1.3 mmol / 30 mL.
[0011] Preferably, in the step of heating to perform the reaction, the temperature is 110-170 degrees Celsius, and the time is 20 hours.
[0012] Preferably, in the step of electroplating the dried product in the electroplating solution, the electroplating solution is prepared from boric acid and chloroauric acid tetrahydrate, and the molar ratio of the boric acid to the chloroauric acid tetrahydrate is 10-100:0.01-0.05.
[0013] Preferably, in the step of electroplating the dried product in the electroplating solution, the dried product is placed in the electroplating solution as a working electrode, the reference electrode is Ag / AgCl, the counter electrode is a platinum sheet, and the electroplating reaction is performed under the condition of power supply.
[0014] Preferably, in the step of performing the electroplating reaction under the condition of power supply, the voltage is 0.5-1.1 V, and the time is 300-1200 seconds.
[0015] Another object of the embodiments of the present application is to provide a NiOH-Au electrocatalytic material loaded on a foam nickel prepared by the above preparation method.
[0016] Another object of the embodiments of the present application is to provide an application of the NiOH-Au electrocatalytic material loaded on a foam nickel in electrocatalytic oxidation of 1, 2-propanediol, which comprises the following steps: placing the NiOH-Au electrocatalytic material loaded on a foam nickel in an H-type electrolytic cell as a working electrode, using Hg / HgO as a reference electrode, using a platinum sheet as a counter electrode, using a mixed solution of a KOH solution and a 1, 2-propanediol solution as an anode electrolyte, and using a potassium hydroxide solution as a cathode electrolyte, and driving the 1, 2-propanediol to perform an oxidation reaction under the condition of power supply.
[0017] Preferably, in the step of driving the 1, 2-propanediol to perform an oxidation reaction under the condition of power supply, the applied potential is 0.4-1.1 V relative to a reversible hydrogen electrode.
[0018] The preparation method of the NiOH-Au electrocatalytic material loaded on a foam nickel provided by the embodiments of the present application uses simple and small amounts of raw materials to synthesize the NiOH-Au electrocatalytic material loaded on a foam nickel through hydrothermal and electroplating, and the preparation method is simple, easy to operate and repeat, and the material quality is stable.
[0019] The prepared NiOH-Au electrocatalytic material loaded on a foam nickel can be used as a working electrode in a KOH and 1, 2-propanediol solution, and only a small amount of voltage is needed to drive the 1, 2-propanediol to be oxidized into lactic acid, and the current density can reach 100 mA / cm2 The current density thereof only needs 1.02V (relative to a reversible hydrogen electrode). BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 Comparison of LSV curves of samples prepared in Example 1 and Comparative Example 1 of the present application in a mixed electrolyte of KOH and 1, 2-propanediol;
[0021] Figure 2 Comparison of LSV curves of samples prepared in Example 1-4 of the present application at different temperatures in a mixed electrolyte of KOH and 1, 2-propanediol;
[0022] Figure 3 Comparison of LSV curves of samples prepared in Example 1, Example 5-7 of the present application at different plating voltages in a mixed electrolyte of KOH and 1, 2-propanediol;
[0023] Figure 4 XPS full spectrum of the sample prepared in Example 1 of the present application;
[0024] Figure 5 Cyclic voltammogram of the sample prepared in Example 1 of the present application in a mixed electrolyte of KOH and 1, 2-propanediol;
[0025] Figure 6 Double-layer capacitance value of the sample prepared in Example 1 of the present application in a mixed electrolyte of KOH and 1, 2-propanediol. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.
[0027] A NiOH-Au electrocatalytic material loaded on a foamed nickel, a preparation method thereof comprising the following steps:
[0028] S1, cut the foamed nickel into a size of 2x3cm rectangular, and sequentially ultrasonic in 1mol / L nitric acid for 10 minutes, in ethanol for 10 minutes, and in deionized water for 10 minutes;
[0029] S2, dissolve 0.9mmol of nickel sulfate hexahydrate in 30mL deionized water, and after ultrasonic for 20 minutes, transfer to a polytetrafluoroethylene liner, and put into the treated foamed nickel, and heat at 150 degrees Celsius for 20 hours, after cooling to room temperature after the reaction, collect the product, wash with ethanol and deionized water, and dry again;
[0030] S3, dissolve 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate in 100 mL of deionized water, shake and ultrasonic until fully dissolved and transfer to a 100 mL beaker, place the NiOH-loaded foam nickel material on the beaker electroplating solution as the working electrode, the reference electrode is Ag / AgCl, the counter electrode is a platinum sheet, and the electroplating reaction is carried out under the condition of power on, the electroplating voltage is controlled at 0.5-1.1 V, and the time is 300-1200 seconds, after electroplating, wash and dry to obtain the NiOH-Au-loaded foam nickel electrocatalytic material.
[0031] The above electrocatalytic material is applied in the oxidation of potassium lactate in an electrocatalytic manner, which specifically comprises the following steps: setting an H-type electrolytic cell as an electrochemical reaction cell, adopting a three-electrode system, taking the NiOH-Au-loaded foam nickel electrocatalytic material as the working electrode, the reference electrode is a mercury-mercury oxide electrode, and the counter electrode is a platinum sheet, the electrolyte is a 1 mol / L potassium hydroxide solution and a 0.2 mol / L 1, 2-propanediol solution, and the potential applied when power is on is 0.5-1.1 V relative to the reversible hydrogen electrode.
[0032] The specific implementation of the present application is described in detail below in combination with specific examples.
[0033] Example 1, a NiOH-Au-loaded foam nickel electrocatalytic material, the preparation method is specifically as follows:
[0034] The cut 2*3 cm rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analyzed pure nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added to the solution and heated in a reaction kettle, the temperature is 150 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonic until fully dissolved and transferred to a 100 mL beaker, the hydrothermal product is placed in the beaker electroplating solution as the working electrode, the reference electrode is Ag / AgCl, the counter electrode is a platinum sheet, and the electroplating reaction is carried out under the condition of power on, the electroplating voltage is controlled at 0.9 V, and the time is 600 seconds; after electroplating, wash and dry to obtain the NiOH-Au-loaded foam nickel electrocatalytic material.
[0035] Example 2, a NiOH-Au-110℃-loaded foam nickel electrocatalytic material, the preparation method is specifically as follows:
[0036] Cutting 2 x 3 cm size of rectangular foam nickel in turn with nitric acid, ethanol and deionized water treatment; raw material selection of analytical pure level of nickel sulfate hexahydrate (0.9 mmol), dissolved in deionized water (30 mL); the treated foam nickel is added to the solution, and heated in the reaction kettle, the temperature is 110 degrees Celsius, the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain the hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker plating solution as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the plating reaction is carried out under the condition of power supply, the plating voltage is controlled at 0.9 V, and the time is 600 seconds. After plating, washing and drying, the NiOH-Au electrocatalytic material loaded on the foam nickel is obtained.
[0037] Example 3, a foam nickel loaded NiOH-Au-130℃ electrocatalytic material, its preparation method is as follows:
[0038] Cutting 2 x 3 cm size of rectangular foam nickel in turn with nitric acid, ethanol and deionized water treatment; raw material selection of analytical pure level of nickel sulfate hexahydrate (0.9 mmol), dissolved in deionized water (30 mL); the treated foam nickel is added to the solution, and heated in the reaction kettle, the temperature is 110 degrees Celsius, the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain the hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker plating solution as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the plating reaction is carried out under the condition of power supply, the plating voltage is controlled at 0.9 V, and the time is 600 seconds. After plating, washing and drying, the NiOH-Au electrocatalytic material loaded on the foam nickel is obtained.
[0039] Example 4, a foam nickel loaded NiOH-Au-170℃ electrocatalytic material, its preparation method is as follows:
[0040] The cut 2x3 cm size rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analytical pure grade nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added to the solution and heated in a reaction kettle, the temperature is 170 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker plating solution as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the plating reaction is carried out under the condition of power on, the plating voltage is controlled at 0.9 V, and the time is 600 seconds; after the plating is completed, the product is washed and dried to obtain a NiOH-Au electrocatalytic material loaded on the foam nickel.
[0041] Example 5, a NiOH-Au-0.5V electrocatalytic material loaded on foam nickel, is prepared according to the following method:
[0042] The cut 2x3 cm size rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analytical pure grade nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added to the solution and heated in a reaction kettle, the temperature is 170 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker plating solution as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the plating reaction is carried out under the condition of power on, the plating voltage is controlled at 0.9 V, and the time is 600 seconds; after the plating is completed, the product is washed and dried to obtain a NiOH-Au electrocatalytic material loaded on the foam nickel.
[0043] Example 6, a NiOH-Au-0.7V electrocatalytic material loaded on foam nickel, is prepared according to the following method:
[0044] The cut 2x3 cm size rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analytical pure grade nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added to the solution and heated in a reaction kettle, the temperature is 150 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker plating solution as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the plating reaction is carried out under the condition of power on, the plating voltage is controlled at 0.7 V, and the time is 600 seconds; after the plating is completed, the product is washed and dried to obtain a NiOH-Au electrocatalytic material loaded on the foam nickel.
[0045] Example 7, a NiOH-Au-1.1V electrocatalytic material loaded on foam nickel, is prepared according to the following method:
[0046] The cut 2x3 cm size rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analytical pure grade nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added to the solution and heated in a reaction kettle, the temperature is 150 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker plating solution as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the plating reaction is carried out under the condition of power on, the plating voltage is controlled at 1.1 V, and the time is 600 seconds; after the plating is completed, the product is washed and dried to obtain a NiOH-Au electrocatalytic material loaded on the foam nickel.
[0047] Example 8, a NiOH-Au-300s electrocatalytic material loaded on foam nickel, is prepared according to the following method:
[0048] The cut 2x3 cm size rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analytical pure grade nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added to the solution and heated in a reaction kettle, the temperature is 150 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker plating solution as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the plating reaction is carried out under the condition of power on, the plating voltage is controlled at 0.9 V, and the time is 300 seconds; after the plating is completed, the product is washed and dried to obtain a NiOH-Au electrocatalytic material loaded on the foam nickel.
[0049] Example 9, a NiOH-Au-450s electrocatalytic material loaded on foam nickel, is prepared according to the following method:
[0050] The cut 2x3 cm size rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analytical pure grade nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added to the solution and heated in a reaction kettle, the temperature is 150 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker plating solution as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the plating reaction is carried out under the condition of power on, the plating voltage is controlled at 0.9 V, and the time is 450 seconds; after the plating is completed, the product is washed and dried to obtain a NiOH-Au electrocatalytic material loaded on the foam nickel.
[0051] Example 10, a NiOH-Au-1200s electrocatalytic material loaded on foam nickel, is prepared according to the following method:
[0052] The cut 2*3 cm size rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analytical pure grade nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added into the solution and heated in a reaction kettle, the temperature is 150 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a hydrothermal product; 0.05 mol of boric acid and 0.03 mmol of chloroauric acid tetrahydrate are dissolved in 100 mL of deionized water, shaken and ultrasonically dissolved, and then transferred to a 100 mL beaker; the hydrothermal product is placed in the beaker as a working electrode, the reference electrode is Ag / AgCl, and the counter electrode is a platinum sheet; the electroplating reaction is carried out under the condition of power supply, and the electroplating voltage is controlled to be 0.9 V, and the time is 1200 seconds; after the electroplating is completed, the product is washed and dried to obtain a NiOH-Au electrocatalytic material loaded on the foam nickel.
[0053] Comparative Example 1, a NiOH electrocatalytic material loaded on foam nickel, is prepared according to the following method:
[0054] The cut 2*3 cm size rectangular foam nickel is treated with nitric acid, ethanol and deionized water in sequence; the raw material is analytical pure grade nickel sulfate hexahydrate (0.9 mmol), which is dissolved in deionized water (30 mL); the treated foam nickel is added into the solution and heated in a reaction kettle, the temperature is 150 degrees Celsius, and the time is 20 hours; after the reaction is completed and cooled to room temperature, the product is collected, washed with deionized water and ethanol, and then dried to obtain a NiOH electrocatalytic material loaded on the foam nickel.
[0055] Performance test:
[0056] The samples prepared in Examples 1-7 and Comparative Example 1 are used as electrocatalytic materials to test their effects on the oxidation of 1, 2-propanediol solution in electrocatalysis, and the specific operation is as follows:
[0057] A mixed solution of 1 mol / L potassium hydroxide and 0.2 mol / L 1, 2-propanediol is used as an electrolyte, the above samples are used as working electrodes, a platinum sheet is used as a counter electrode, a mercury / mercury oxide electrode is used as a reference electrode, and the potential is controlled at 0.4-1.1 V relative to a reversible hydrogen electrode; through an electrochemical workstation test, the LSV curve shown in Figures 1-3 is obtained.
[0058] According to Figure 1 It can be seen that the material prepared in the examples of the present application can drive 1, 2-propanediol to be oxidized to lactic acid in a mixed solution of 1 mol / L potassium hydroxide and 0.2 mol / L 1, 2-propanediol only with a small amount of voltage, and the current density reaches 100 mA / cm2 The current density thereof only needs 1.02V (relative to reversible hydrogen electrode);
[0059] The sample prepared in Example 1 was analyzed, and the obtained XRD spectrum is shown in Figure 4 ;
[0060] The sample prepared in Example 1 was subjected to cyclic voltammetry test in a mixed electrolyte of KOH and 1, 2-propanediol, and the double-layer capacitance value was calculated, and the cyclic voltammetry curve is shown in Figure 5 , and the double-layer capacitance value result is shown in Figure 6 .
[0061] The above merely describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A method for preparing NiOH-Au electrocatalytic material supported on nickel foam, characterized in that, Includes the following steps: The cut nickel foam was treated sequentially with nitric acid, ethanol, and deionized water. Nickel sulfate hexahydrate was dissolved in deionized water, then the treated nickel foam was added, and the mixture was heated to react. After the reaction was completed, the mixture was cooled to room temperature, the product was collected, washed with ethanol and deionized water, and then dried. The dried product was electroplated in an electroplating solution. After electroplating, it was washed and dried to obtain NiOH-Au electrocatalytic material supported on nickel foam.
2. The method for preparing NiOH-Au electrocatalytic material supported on nickel foam according to claim 1, characterized in that, In the step of treating the cut nickel foam sequentially with nitric acid, ethanol and deionized water, the concentration of the nitric acid is 1-1.2 mol / L, and the treatment is ultrasonic treatment.
3. The method for preparing NiOH-Au electrocatalytic material supported on nickel foam according to claim 1, characterized in that, In the step of dissolving nickel sulfate hexahydrate in deionized water, the concentration of nickel sulfate hexahydrate is 0.5-1.3 mmol / 30 mL.
4. The method for preparing NiOH-Au electrocatalytic material supported on nickel foam according to claim 1, characterized in that, In the step of heating to carry out the reaction, the temperature is 110-170 degrees Celsius and the time is 20 hours.
5. The method for preparing NiOH-Au electrocatalytic material supported on nickel foam according to claim 1, characterized in that, In the step of electroplating the dried product in an electroplating solution, the electroplating solution is prepared with boric acid and chloroauric acid tetrahydrate, and the molar ratio of boric acid to chloroauric acid tetrahydrate is 10-100:0.01-0.
05.
6. The method for preparing NiOH-Au electrocatalytic material supported on nickel foam according to claim 1, characterized in that, The step of electroplating the dried product in an electroplating solution specifically involves placing the dried product in an electroplating solution as a working electrode, with Ag / AgCl as the reference electrode and a platinum sheet as the counter electrode, and performing the electroplating reaction under energized conditions.
7. The method for preparing NiOH-Au electrocatalytic material supported on nickel foam according to claim 6, characterized in that, In the step of performing the electroplating reaction under energized conditions, the voltage is 0.5-1.1V and the time is 300-1200 seconds.
8. A NiOH-Au electrocatalytic material supported on nickel foam, characterized in that, It is prepared using the preparation method described in any one of claims 1-7.
9. The application of the NiOH-Au electrocatalytic material supported on nickel foam as described in claim 8 in the electrocatalytic oxidation of 1,2-propanediol, characterized in that, The process includes the following steps: placing the NiOH-Au electrocatalytic material supported on the nickel foam in an H-type electrolytic cell as the working electrode, with Hg / HgO as the reference electrode, a platinum sheet as the counter electrode, a mixed solution of KOH and 1,2-propanediol as the anolyte, and a potassium hydroxide solution as the cathode electrolyte, and driving the oxidation reaction of 1,2-propanediol under energized conditions.
10. The application according to claim 9, characterized in that, In the step of driving the oxidation reaction of 1,2-propanediol under energized conditions, the applied potential is 0.4-1.1V compared to the reversible hydrogen electrode.